Lighting fixture



Sept. 14, 1943. D, J, BILLER 2,329,243

Y LIGHTING FIXTURE Filed April s, 1942 ,Patented sept. 14, 1943 EIS.RATENI*Grrr-Ce v i LIGHTING IilvxruaE-,lA Davia J. Biuenst. Louis, M6.,assigns-r a; DML;

Brite Lighting, Inc., St. Louis, Mo., a corpora-l ton of Missouri Thisinvention relatesto overhead lighting xtures and has for its principalobjectto provide a simple and economical fixture that may be quickly andeasily fastened in the desired position to a ceiling or other overheadsupport in which the fixture supporting yscrews or boltsare improperlylocated. The invention consists in providing the xture with 'a rotatabletop section having a slot therein for the fixture supporting screw orbolt, whereby said section may be rotated relative to said fixture tobring said slot in line with an improperly located supporting screwwithout `changing the position of the fixture on the ceiling. Theinvention also consists in the v fixture and in the construction,combinations and arrangements of parts hereinafter described andclaimed. o.

In the accompanying drawing, which forms part of this specification andwherein like symbols refer to like parts wherever they occur.

Fig. 1 is a vertical sectional view, showing a lighting fixturekembodying my invention secured to a concrete ceiling or other overheadsupport by an improperly located supporting screw.

Fig. 2 is a fragmentary horizontal section on extending lverticallytherethrough. Rotatably mounted in the hole 2 is an inverted cup-shapedmounting section B having an outstanding peripheral base ange 3 thatextends beneath the top e wall land serves to sustain the same aroundsaid openmg.

The rotary to-p wall section B of the housing A has an elongateddiametral slot 4 formed in the top wall thereof adapted to receive asupporting member preferably inthe form of a screw 5 which is threadedin a mounting hole 6y provided therefor in a ceiling or other overheadsupport C. The overhead support C shown is made of concrete,

the expansion plug 6, a Washer 8 being preferably interposedbetween thehead of said screw and the underside of said rotatable top wall section.When the mounting screw 5 is tightened, the housing A is yrigidlyclamped at its outer edges to the ceiling, the dished portion I of thetop wall of said housing providing space for the upwardly extending bodyportion of the rotary top wall section B. The side wall of the top wallsection B has outstanding bosses 9 pressed therein which overhang' thetop wall of the fixture around the opening 2k therein and cooperate withthe base ange 3 to retain said section in said opening.

By the arrangement described, when the mounting hole 6 is improperlylocated in the oeiling,due to inadvertance or necessity, the fixture maybe secured to the ceiling in the position desired. by rotating the topwall section B of the housing A in the opening 2 provided therefor inthe dished top wall I` of said housing to bring the elongated slot 3 insaid section in line with such improperly located hole so-that themounting screw 5 may be inserted through said slot and threaded intosaid hole. A s shownin Fig. 3, thediametral or radial :slot d may bebrought into register with amounting hole inthe ceiling withoutchangingthe location of the iixture provided said hole is locatedanywhere in an area bounded by a circle that is concentric with therotary axis of the rotary. section B and touches the outer end of saidslot. l v

What I claim is: f, A 1. A lighting fixture comprising a housinghavvring a Wall with an opening extending therethrough, and a mountingmember secured to said vwall for freeirotary movement in but non-axialwithdrawal lfrom said opening, said mounting member having an elongatedslot disposed transverse to the rotary axis thereof adapted to receivewhich necessitates the use of anexpansion plug a member for` fasteningsaid mounting member to a supporting member therefor.

2. A lighting fixture comprising a downwardly opening housing having atop wall with a circular v*opening* extending verticallyv therethrough,and a mounting mem-ber rotatablyk secured to said top wall for freerotation in said opening and having a diametral slot opening into saidhousing adapted to receive a member insertable through the bottom ofsaid housing for securing said mounting member to an overhead support.

3. A lighting iixture having a top wall with a central circular opening'extending vertically therethrough, and an inverted cup-shaped mountingmember rotatably mounted in said opening and having portions engagingthe top and bottom adapted to receive a member for securing said nmounting member to an overhead support.

4. A lighting fixture having a top wall with a central circular openingextending verticallyy therethrough, and` an invertedtcup-shaped. memberhavingi a cylindrical body rotatably'mounted-v in saidv opening, anoutst'andingbase flange extending beneath said top Wall for supportingthe;4

transverse to the rotary axis of said member: andi adapted to receive ascrew for securinggsaid.fix-L ture to an overhead support. 'n

I I tofreceive a screw for securing said fixture to an same around saidopening vand a slot 'disposed' 5. yA lighting fixture having a dishedtop wail with acentral circular opening extending verticallytherethrough, and an inverted cup-shaped `member rotatably mounted insaid opening and rhaving an outstanding :base flange extending beneathsaid top wallV fior supporting the same around said opening and portionsoverhanging the :edgeoi, saidopeningz abovgsaditopwall for supporting"saidg memben in said lopening, said member having a diametrai slottherein adapted

